Inking mechanism for printing presses



May 31, 1932. H. A. w. wooo 1,861,073

INKING IECHANISN FOR PRINTING PRESSES Filed Aug" 4, 1923 s sheets sheet1 [/VVENTOR A TTORNE YJ' May 31, 1932. H. A. w. WOOD 1,861,073 7 INKINGMECHANISM FOR PRINTING PRESSES Filed Aug. 4, 1923 ,3 Sheets-Sheet 2 J16lAI-"IEA mm.

y 1932- H. A. w. WOOD 1,861,073

INKING MECHANISM FOR PRINTING PRESSES Filed Aug. 4, 1923 3 Sheets-Sheet3 I j' 4 i i Z Q. I i I 125 y I 12 I 1 /Z0- H fl k. .izig x5 J27 l 125 fEfiEF/ r /22 J14 J22 x 5T 4;," I j 5 1 J11 I A: 1/2

A [NVENTOR 32 757. e If (4 TTORNEYJ" Patented May 31, 1932 UNITED STATESPATENT OFFICE HENRY A. WISE WOOD, OF N EW YORK, N. Y.,

AssIGNon T woon NEWSPAPER MACHIN- ERY CORPORATION, on NEW YORK, N. Y., ACORPORATION or VIRGINIA INKING MECHANISM FOR PRINTING PRESSESApplication filed August 4, 1923. Serial No. 655,777.

This invention relates especially to the Suppl and distribution of inkon the ink cylin er of an inking mechanism but is ca pable of use fordistributing any kind of Ii uid or paste.

he principal objects of the. invention are to provide effective meansfor regulating the amount of ink applied to the ink cylinder and fordistributing it thereon. The invention involves means for reciprocatingcertain of the distributing rolls on the surface of the ink cylinder forinsuring alternate motion of adjacent ones, the'reciprocation of the inkcylinder itself to improve the ink distribution, and the employment ofdistributing rolls in fixed bearings co-operating with the movingcylinder and alternating with the vibrating rolls, also means foroperating the ductor roll capable ofbeing adjusted so as to regulate thedwell of the ductor roll on the fountain roll and ink cylinderalternately and thus more thorou hly distribute the ink on the formerbefore it is applied to the ink cylinder and to provide severalimprovements in the mechanism for accomplishing these results.

Other features and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which i Fig. 1is an end view of an-inking device set up on a printing press frameshowing a preferred embodiment of this invention;

Fig. 2 is a plan of thesame with parts shown in section on the center ofthe ink cylinder shaft;

Fig. 3 is an end view of a portion of this mechanism, looking in thedirection of the arrows 33 in Fig. 1; and

Fig. 4 is a sectional view on the line 4% I of Fig. 1.

I have shown the invention as applied to the frame of a printing pressand indicated the plate cylinder 10, the ink cylinder 14, form rolls 16and distributing rolls 15, etc. Also the ink fountain 12 is illustratedhaving therein the ink or fountain roll 13 from which the ink is appliedto the ink cylinder by the ductor roll 17.

On the shaft 86 of the ink cylinder 14 is a the ductor cam 100.

gear 87 or other device through which power is transmitted to this shaftfrom a motor or some part of a press. This shaft is provided on the endwith a bushing 88 resting in a bearing 89 on the frame. The shaft 86 andbushing 88 are slidably keyed with respect to eachother so that theshaft can reciprocate in the bushing. The bushing is held fromreciprocation in the hearing by a collar 90 on one end and the hub ofthe. gear 87 on the other. v that, although the shaft 80 may move backand forth, the bushing 88 rotates with it positively.

()n thecnd of this bushing, preferably integral therewith, is a bevelgear 91 meshing with a bevel gear 92 on an inclined shaft 93 supportedin suitable bearings and provided with a worm 94 thereon. This wormmeshes with a worm gear 95 free on the shaft 96 of the fountain ink roll13. On the gear 95 is a pawl 97 adapted to be forced by a spring intocontact with a ratchet wheel 98 keyed on the shaft 96 so that the motionof the worm wheel 95 normally is transmitted to the shaft 96 positivelyas if they were keyed together'but the operator can turn the shaft 96forward independently of the operation of the worm Wheel 95. F ixedlymounted on the shaft 96 is This cam rotates positively with the shaft96. It is provided with a series of cam surfaces which are wider at oneend than at the other. Three sets of such surfaces are illustrated. Thiscam acts upon a roll 10]. mounted on a bushing 102 which is screwthreaded internally and has an arm 103 projecting therefrom and providedwith a notch adapted to engage a straight guide 104 mounted on an arm105 loosely pivoted on a shaft 106. This arm 105 terminates in a forkwhich supports an adjusting screw 10S having a handle 109 for turningthe screw and moving the roll 101 along the screw and the arm 103 alongthe guide 104. By spinning this handle 109 around the position of theroll on the cam 100 is changed.

\Vhen the roll is in the position shown in Fig. 3, the part of the camwhich it engages is of such a nature as to allow this roll to beretracted to its extreme position toward the yoke 113 on which shaft 96only a very short period of time three times per revolution. When theroll 101 is at the other end of the screw 108 this roll is at saidextreme position through a lar e part of the revolution of the shaft 96an; is lifted from that position briefly three times per revolution.Keyed to the sh aft 106 is another arm 107. Connecting the two arms 107and 105 is an adjusting screw 197. This screw can be adjusted so as tore ulate the location of the arm 105 on the shaft 106. It providespositive connection of that arm with the shaft although it is looselymounted thereon at its hub. Also keyed on the shaft 106 are two arms 109which support the duetor roll 17. Therefore as the roll 101 moves outand in due to the operation of the arm 107, the ductor roll 17necessarily moves with it. The object of this is to enable the operatorto re ulate the time during which the ductor r0 1 will remain in contactwith the fountain roll 13 and incidentally the time which it will remainin contact with the ink cylinder at the other end of its stroke. In thisway the distribution of the ink on the ductor roll from the fountainroll before it touches the ink c linder is regulated and better printingresu ts secured.

On the opposite end of the shaft 86 is a worm 110 meshing with a wormwheel 111 on an inclined shaft 112 located in bearings on a yoke 113.This yoke is connected with the shaft 86 by two collars 114 so as toslide therewith. It is also provided with bearings 115 on a stationaryrod 116 for guiding this yoke to move longitudinally with the shaft 86.

On the opposite ends of the shaft 112 are two crank arms 117 eachpivoted to a bellcrank 118, the bell-cranks being freely supported on ashaft 119. The rotation of the shaft 112 therefore vibrates the twobellcranks 118 simultaneously. Each of these bell-cranks is providedwith a pin 120 having a roll engagin a grooved collar 121, each fixed onone 0 two longitudinal shafts 122. These two shafts carry two of thedistributing rolls 15.

Another result of the rotation of the shaft 112 is the reciprocation ofthe yoke 113. As the two bell-cranks 118 are pivoted on a shaft 119mounted in fixed bearings, the only way in which the cranks 117 canrotate around a complete circle is to cause motion of this the shaft 112is mounted. The bell-cranks can swing about the pivot 119 but their endscannot move toward and w from it so the shaft 112 has to move to allowthis operation to take place. This therefore slides the yoke, the shaft112 and the worm gears 110 and 111 back and forth. As the worm wheel 110is positively fixed on the shaft 86 this shaft slides also through thebushing 88 and it takes with it the ink cylinder 14. Therefore this inkcylinder reciprocates and as has been demonstrated above, two

of the distributing rolls 15 reciprocate also but in the oppositedirection to the motion of the ink cylinder half of the time. They movein one direction while the cylinder is moving from central position tothe end of the stroke and back to the center. Also piv oted on the shaft119 is a bell-crank 123 hav-.

ing two arms. One of them is provided with arallel guiding surfaces 12%straddling a stud 125 on the yoke .113. Therefore this bell-crankoscillates as the yoke slides. The other arm of the bell-crank 123 isprovided with a pin 126 carrying a roll engaging in a collar 127 on oneof the other ink distributing roll shafts 122. It causes this roll 15 onthe shaft 122 to reciprocate in a direction contrary all the time to thedirection of motion of the cylinder 14.

Another distributing roll 15 is operated by an arm 198 on the hub of onebell-crank 118. It projects in a direction substantially opposite to theother operating arms 118 so as to move its roll contrary to the motionof the rolls 15.

I have also shown two other ink distributing rolls 150 mounted inbearings 128 adjustably fixed in position. The parts just described aremounted on a distributing roll late 129 centered on the shaft 86 andheld y a pin 130 in stationary position. Therefore these two rolls 150cannot. vibrate or change their positions. They distribute the ink onthe ink cylinder by the vibratory motion of the latter.

It will be seen therefore that for the purpose of fully distributing theink on the uctor roll, I have provided readily adjustable means by whichthe interval of contact of this roll with the fountain roll can beregulated, and also the length of contact of the ductor roll with theink cylinder, and in order to thoroughly distribute the ink on thecylinder I have provided for its longitudinal vibration and supplied itwith four sets of distributing rolls, three sets reciproeating indifferent directions or timed differently with the fourth set mounted instationary bearings but of course free to rotate in contact with the inkcylinder.

Although I have illustrated and described only a single form of thisinvention I am aware of the fact that modifications can be made thereinby any person skilled in the art without depar ing from the scope of theinvention as expressed in the claims. Therefore I do not wish to belimited to all the details of construction and the specific combinationsof parts herein shown and described, but what I do claim is 1. In aninking device, the combination with a fountain roll and vibratory ductorroll, of a cam rotatable with the fountain roll, a cam roll connectedwith the ductor roll to move it and contacting with the cam, said camhaving a plurality of controlling surfaces thereon each wider at one endthan at the other, and means for adjusting the cam roll along the cam toregulate the duration of .contact of the ductor roll with the fountainroll.

2. In an inking device, the combination with a fountain roll andvibratory ductor roll, of a cam rotatable with the fountain roll, a camroll connected with the ductor roll to move it and contacting with thecam, said cam having a plurality of controlling surfaces thereon eachwider at one'end than at the other, a screw on which the cam roll ismounted, a screw threaded bearing supporting the cam roll on the screw,and means for holding the bearing against turning, whereby the rotationof the screw will adjust the cam roll along the cam and regulate theduration of contact of the ductor roll with the fountain roll.

In an inking device, the combination with a fountain roll, vibratoryductor roll and ink, cylinder, of a cam fixed to and rotatable with thefountain roll, a cam roll movable with the ductor roll and adapted tocontact with the cam, a shaft having arms thereon on which the ductorroll is mounted, an arm loose on said shaft, a cam roll mounted on thelast named arm, an additional arm fixed on the ductor roll shaft, andmeans for adjustably connecting the last two arms to positively connectthe cam roll arm with the shaft and cause it to move the ductor rollwith it.

{l- In an inking device, the combination with a reciprocable inkcylinder shaft and an ink cylinder fixed thereon, of a bushing in whichsaid shaft is mounted slidably keyed thereto, a fountain roll, means fortransmitting power from said shaft through the bushing to the fountainroll for operating it, and means controlled by the rotation of the inkcylinder shaft for reciprocating the ink cylinder.

5. In an inking mechanism, the combination withan ink cylinder, of alongitudinally slidable shaft on which the ink'cylinder is fixed, meansfor transmitting power to the ink cylinder shaft, a worm on said shaft,a worm wheel meshing with the worm, a shaft on which the worm wheel ismounted operated by the ink cylinder shaft and having a crank thereon, alink pivoted to said crank and also pivoted on a stationary fpart of themachine, whereby the rotation o the crank will cause the worm wheel,worm and cylinder shaft to reciprocate in the direction of the axis ofthe latter, an ink distributing roll contacting with the ink cylinder,and means connected with said link for reciprocating said roll along itsown axis.

6. In an inking mechanism, the combination with an ink cylinder, of alongitudinally slidable shaft on which the ink cylinder is fixed, ashaft operated by the ink cylinder shaft and having a crank thereon, alink pivoted to said crank and also pivoted on a stationary part of themachine, whereb the rotation of the crank will cause the cylinder shaftto reciprocate in the direction of its axis, an ink distributing rollcontacting with the ink cylinder, and means connected with said link forreciprocating said roll along its own axis.

7. In an inking mechanism, the combination with an ink cylinder, of alongitudinally slidable shaft on Which the ink cylinder is fixed, areciprocable yoke connected with said shaft, a shaft on the yoke havinga crank thereon, means forrestricting the operation of the crank wherebythe rotation of the crank will cause the yoke and c linder shaft toreciprocate, a guide for gui ing the yoke to move in adirection parallelwith the axis of the inkcylinder shaft an ink distributing rollcontacting with the ink cylinder and means connected with said crank forreciprocating said roll along its own axis.

8. In an inking mechamsm, the combination with an ink cylinder, of alongitudinally slidable shaft on which the ink cylinder is fixed, ayoke, a shaft mounted on the yoke and having a crank thereon, a linkpivoted to said crank at one end and pivoted at the other end on astationary part of the machine, whereby the rotation of the crank willcause the yoke to reciprocate, a guide for iding the yoke to move in adirection paral el with the axis of the ink cylinder shaft, a leverconnected with said yoke to be oscillated thereby as the yokereciprocates, an ink distributing roll in contact with said cylinder andmeans connected with said lever for reciprocating said roll.

9.111 an inking mechanism, the combination with an ink cylinder, of alongitudinally slidable shaft on which the ink cylinder is fixed, areciprocable yoke connected with the shaft to move therewith, meanswhereby the rotation of the shaft will reciprocate the yoke, an inkdistributing roll contactin with the ink cylinder, means connected witsaid yoke for reciprocating said roll along its own axis, a leverpivotally mounted and connected to be oscillated as the yokereciprocates, a second ink distributing roll, and means connected withsaid lever for reciprocating the second roll part of time in thedirection opposite to the direction of motion of the ink cylinder.

10. In an inking mechanism, the combination of an ink cylinder, a shafton which it is mounted, means for reciprocating said cylinder, aplurality of sets of ink distributing rolls around the cylinder, meansconnected with said shaft for reciprocating two sets of said rolls inone direction but at different intervals, with respect to another setand means for supporting others of said ink distributing rolls in fixedposition but in a condition free to rotate by contact with the inkcylinder. 11. In an inking mechanism, the combination of an inkcyllnder, a shaft on which it is 5 mounted, means for reciprpcating saidcylinder, a series of ink distributing rolls around the cylinder incontact with it, means connected with said shaft for reciprocating someof said rolls, and means for supporting others of said ink distributinrolls in fixed position but in a condition e to rotate by contact withthe ink cylinder.

12. In an inking mechanism, the combination with a reciprocable inkcylinder, and a plurality of distributing rolls in contact therewith, ofmeans for reciprocating said cylinder, and means for reciprocating threeof said rolls in three different ways, and means for holding another ofsaid rolls in stationary position.

7 In testimony whereof I have hereunto affixed my signature.

HENRY A. WISE WOOD.

